Summary
Experimental evidence has been obtained for alteration of the molecular organization in polyacrylonitrile which has been given a thermoelectric treatment that creates a persistent electrical polarization. These studies have involved infrared spectroscopy and X-ray diffractometry, and their results have been interpreted as suggesting the existence of dipolar clusters in polarized material. These clusters cause polyacrylonitrile chains to adopt a structure which is different from any previously reported for this material. It is suggested that stability of the polarized state of polyacrylonitrile results, in part, from this new molecular organization.
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Stupp, S.I., Carr, S.H. Electric field-induced structure in poly(acrylonitrile). Colloid & Polymer Sci 257, 913–919 (1979). https://doi.org/10.1007/BF01520713
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DOI: https://doi.org/10.1007/BF01520713